Anti-seismic cabinet body of power supply equipment for nuclear power station

Abstract

The invention discloses a power supply equipment anti-seismic cabinet body for a nuclear power station. The invention provides a power supply equipment anti-seismic cabinet for a nuclear power station. The power supply equipment anti-seismic cabinet comprises a plurality of stand columns; the bottom frame comprises a plurality of cross beams, and the two ends of each cross beam are fixedly connected with the two opposite stand columns respectively; the two ends of each longitudinal beam are fixedly connected with the two opposite stand columns respectively, and the longitudinal beams make contact with the cross beams and are fixedly connected with the cross beams. Through the arrangement, the cross beams of the bottom frame are fixedly connected with the two oppositely-arranged stand columns, the longitudinal beams are also fixedly connected with the two oppositely-arranged stand columns, and the longitudinal beams make contact with the cross beams and are fixedly connected with the cross beams. Through the arrangement, the cross beams of the bottom frame, the longitudinal beams of the bottom frame and the stand columns are fixedly connected to form the frame of the power supply equipment anti-seismic cabinet body for the nuclear power station, and the strength of the power supply equipment anti-seismic cabinet body for the nuclear power station can be enhanced.

Description

Technical Field

[0001] The present application relates to the field of earthquake-resistant cabinet manufacturing, and in particular to an earthquake-resistant cabinet for power supply equipment used in a nuclear power plant. Background Art

[0002] In the application scenario of seismic cabinets for power equipment in nuclear power plants, it is necessary to consider the on-site earthquake response spectrum and the placement of heavy components during in-plant production and assembly, so there are high requirements for the overall frame strength. When an earthquake occurs, bolts and rivets in the seismic cabinet are prone to loosening, the mechanical changes in the cabinet structure, and the cabinet undergoes relatively serious plastic deformation and displacement, squeezing the power equipment installed in the cabinet cage and other equipment, destroying its installation structure, and seriously threatening the functional operation of the power equipment, and thus the nuclear power plant cannot be shut down normally in the event of an earthquake. In related designs, in order to meet the strength of the seismic cabinets for power equipment in nuclear power plants, sheet metal parts are often added at the connection points to increase the strength, so as to transfer the horizontal and vertical stresses on the columns to the frame bottom frame.

[0003] However, the solution adopted by the related technology has an increased risk of failure of sheet metal parts due to the presence of a large number of sheet metal parts, and the sheet metal parts themselves are small in size and can only play a limited reinforcing role, and cannot meet the strength requirements of the seismic cabinet of the power equipment for nuclear power plants. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides an earthquake-resistant cabinet for power supply equipment for a nuclear power plant.

[0005] This application is implemented through the following technical solutions.

[0006] The present application provides an earthquake-resistant cabinet for power supply equipment for a nuclear power plant, comprising: a plurality of columns; and a bottom frame, comprising: a plurality of cross beams, the two ends of the cross beams are respectively fixedly connected to two oppositely arranged columns; and a plurality of longitudinal beams, the two ends of the longitudinal beams are respectively fixedly connected to two oppositely arranged columns, wherein the longitudinal beams are in contact with and fixedly connected to the cross beams.

[0007] In the exemplary embodiment provided in the present application, the inner side of the longitudinal beam contacts and is connected to the outer side of the transverse beam.

[0008] In the exemplary embodiment provided in the present application, the crossbeam includes an inner sleeve beam and an outer sleeve beam fixed to each other, the inner sleeve beam is in contact with and connected to the inner side of the outer sleeve beam; the inner sleeve beam includes a first edge, a first connecting edge and a second edge connected in sequence, the first edge is arranged opposite to the second edge, the first edge, the first connecting edge and the second edge form a groove with an opening, wherein the opening faces the bottom of the earthquake-resistant cabinet.

[0009] In the exemplary embodiments provided in the present application, the edge of the first side is bent toward the direction close to the opening to form a first bent edge; and / or the edge of the second side is bent toward the direction close to the opening to form a second bent edge.

[0010] In an exemplary embodiment provided in the present application, an edge of the first connecting side is a right angle, and the edge of the first connecting side is fixedly connected to the longitudinal beam.

[0011] In the exemplary embodiment provided in the present application, the outer sleeve beam includes a third side, a second connecting side and a fourth side connected in sequence, the third side is opposite to the fourth side, the third side is located above the fourth side, the third side of the outer sleeve beam contacts the first connecting side of the inner sleeve beam, wherein the edge of the third side is a beveled side, and the edge of the third side of the outer sleeve beam is adjacent to or contacts the edge of the longitudinal beam.

[0012] In the exemplary embodiment provided in the present application, the longitudinal beam includes a fifth side, a third connecting side and a sixth side connected in sequence, the fifth side is opposite to the sixth side, and the fifth side is located above the sixth side, wherein the edge of the fifth side is a beveled side, and the edge of the fifth side is fixedly connected to the internal sleeve beam, and / or the edge of the sixth side is a beveled side, and the edge of the sixth side is fixedly connected to the internal sleeve beam.

[0013] In the exemplary embodiment provided in the present application, the bottom frame includes a plurality of support beams, and the plurality of support beams include support longitudinal beams and support cross beams, the two ends of the support longitudinal beams are respectively connected to the oppositely arranged cross beams, and the two ends of the support cross beams are respectively connected to the oppositely arranged longitudinal beams.

[0014] In an exemplary embodiment provided in the present application, the supporting cross beam is located at a lower portion of the supporting longitudinal beam, and the supporting cross beam is connected to the supporting longitudinal beam.

[0015] In an exemplary embodiment provided in the present application, an extension direction of the supporting cross beam is perpendicular to an extension direction of the supporting longitudinal beam.

[0016] In the exemplary embodiment provided in the present application, the supporting beam includes a first side, a connecting side and a second side connected in sequence, the first side is arranged opposite to the second side, the first side, the connecting side and the second side form a groove with an opening, and the opening faces the interior of the earthquake-resistant cabinet of the power supply equipment for the nuclear power plant.

[0017] In the exemplary embodiments provided in the present application, the edge of the first side is bent in a direction away from the opening to form a third bent edge; and / or the edge of the second side is bent in a direction away from the opening to form a fourth bent edge.

[0018] In an exemplary embodiment provided in the present application, the supporting beam extends in a first direction, and a length of the supporting beam in the first direction is adjustable.

[0019] Through the arrangement of the present application, the cross beam of the bottom frame is fixedly connected to two oppositely arranged columns, the longitudinal beam is also fixedly connected to two oppositely arranged columns, and the longitudinal beam and the cross beam are in contact and fixedly connected. Through the arrangement of the present application, the cross beam of the bottom frame, the longitudinal beam of the bottom frame and the columns are fixedly connected to form the framework of the earthquake-resistant cabinet of the power supply equipment for the nuclear power plant, which can enhance the strength of the earthquake-resistant cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0021] Figure 1 A schematic top view of a three-dimensional structure of an earthquake-resistant cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application;

[0022] Figure 2 A bottom-up stereoscopic structural schematic diagram of an earthquake-resistant cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application;

[0023] Figure 3 A schematic diagram of a top view of the bottom frame of an earthquake-resistant cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application;

[0024] Figure 4 A bottom view structural diagram of a bottom frame of an earthquake-resistant cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application;

[0025] Figure 5 An exploded schematic diagram of a crossbeam of a bottom frame provided in some embodiments of the present application.

[0026] Description of Reference Numerals

[0027] 1Anti-seismic cabinet for power equipment for nuclear power station; 10Post; 100Beam; 110Inner sleeve beam; 111First side; 112Second side; 113First connecting side; 1110First bending side; 1120Second bending side; 1130Edge of first connecting side; 120Outer sleeve beam; 121Third side; 122Fourth side; 123Second connecting side; 1210Edge of third side; 1220Edge of fourth side;

[0028] 20 bottom frame; 200 longitudinal beam; 201 fifth side; 202 sixth side; 203 third connecting side; 2010 edge of the fifth side; 2020 edge of the sixth side;

[0029] 30 top frame; 301 supporting cross beam; 302 supporting longitudinal beam; 311 first side edge; 312 second side edge; 313 connecting side edge; 3110 third bending edge; 3120 fourth bending edge; 321 third side edge; 323 second connecting side edge; 322 fourth side edge; 3210 fifth bending edge; 3220 sixth bending edge;

[0030] 40 foot; 50 connection part; 51 first connection part; 52 second connection part; 53 third connection part;

[0031] x is the first direction; y is the second direction; z is the direction of gravity. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0033] In the application scenario of the seismic cabinet of power equipment for nuclear power plants, it is necessary to consider the on-site earthquake response spectrum and the placement of heavy components during in-plant production and assembly, so there are high requirements for the overall frame strength. When an earthquake occurs, bolts and rivets in the seismic cabinet are prone to loosening, the mechanical changes of the cabinet structure, and the cabinet undergoes relatively serious plastic deformation and displacement, squeezing the power equipment installed in the cabinet cage and other equipment, destroying its installation structure, and seriously threatening the functional operation of the power equipment, and thus the nuclear power plant cannot be shut down normally in the event of an earthquake. In related designs, in order to meet the strength of the seismic cabinet of power equipment for nuclear power plants, sheet metal parts are often added at the connection points to increase the strength, so as to transfer the horizontal and vertical stresses of the columns to the frame bottom frame.

[0034] However, the solution adopted by the related technology has an increased risk of failure of sheet metal parts due to the presence of a large number of sheet metal parts, and the sheet metal parts themselves are small in size and can only play a limited reinforcing role, and cannot meet the strength requirements of the seismic cabinet of the power equipment for nuclear power plants.

[0035] In order to solve the above technical problems, the present application provides an earthquake-resistant cabinet for power supply equipment for a nuclear power plant.

[0036] The seismic cabinet of power supply equipment for nuclear power plants provided in the present application comprises: a plurality of columns; and a bottom frame, comprising: a plurality of cross beams, the two ends of which are respectively fixedly connected to two oppositely arranged columns; and a plurality of longitudinal beams, the two ends of which are respectively fixedly connected to two oppositely arranged columns, wherein the longitudinal beams are in contact with and fixedly connected to the cross beams.

[0037] Through the arrangement of the present application, the cross beam of the bottom frame is fixedly connected to two oppositely arranged columns, the longitudinal beam is also fixedly connected to two oppositely arranged columns, and the longitudinal beam and the cross beam are in contact and fixedly connected. Through the arrangement of the present application, the cross beam of the bottom frame, the longitudinal beam of the bottom frame and the columns are fixedly connected to form the frame of the earthquake-resistant cabinet of the power supply equipment for the nuclear power plant, which can enhance the strength of the earthquake-resistant cabinet of the power supply equipment for the nuclear power plant.

[0038] Figure 1 A schematic top view of a three-dimensional structure of an earthquake-resistant cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application; Figure 2 A schematic diagram of the bottom-up stereoscopic structure of a seismic cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application.

[0039] like Figure 1 and Figure 2 As shown, the earthquake-resistant cabinet 1 for power supply equipment for nuclear power plants provided in the present application may include a column 10, a bottom frame 20, a top frame 30 and a foot 40. The bottom frame 20 and the top frame 30 are respectively connected to the two ends of the column 10, wherein, taking the gravity direction z as a reference, the bottom frame 20 is located below the top frame 30 in the gravity direction z. In the present application, the gravity direction z refers to the vertical direction perpendicular to the horizontal plane. The foot 40 may be located below the bottom frame 20, and the foot 40 is a long strip open box-shaped structure. The provision of the foot 40 strengthens the connection strength of the bottom of the earthquake-resistant cabinet 1 for power supply equipment for nuclear power plants, improves the stability of the cabinet, and improves the earthquake resistance.

[0040] like Figure 1 and Figure 2 As shown, there may be multiple columns 10. Taking the earthquake-resistant cabinet 1 of the power supply equipment for a nuclear power plant as a rectangular parallelepiped as an example, the bottom frame 20 and the top frame 30 may be rectangular. There may be four columns 10, which are respectively connected to the four corners of the bottom frame 20 and the top frame 30. However, the present disclosure is not limited thereto. In some embodiments, there may be six, eight or other possible numbers of columns 10.

[0041] In the exemplary embodiment provided in the present application, the bottom frame 20 may include a plurality of cross beams 100 and a plurality of longitudinal beams 200. The cross beams 100 may extend in a first direction x, and the longitudinal beams 200 may extend in a second direction y. The plane defined by the first direction x and the second direction y may be perpendicular to the gravity direction z, that is, the plane defined by the first direction x and the second direction y may be a horizontal plane.

[0042] In the exemplary embodiments provided in the present application, the first direction x and the second direction y are perpendicular to each other.

[0043] like Figure 1 and Figure 2 As shown, both ends of the cross beam 100 can be fixedly connected to two oppositely disposed upright posts 10. Both ends of the longitudinal beam 200 can be fixedly connected to two oppositely disposed upright posts 10, and the longitudinal beam 200 and the cross beam 100 can contact and be fixedly connected to each other.

[0044] In the present application, the various components can be connected by rivets, screws, etc. at the connection part 50. The columns, beams, and longitudinal beams can be connected by rivets at the connection part 50, which greatly reduces the risk of failure.

[0045] In the present application, the inner side of the longitudinal beam 200 contacts and connects with the outer side of the transverse beam 100. It should be noted that in the present application, the inner side is the inner side of the anti-seismic cabinet of the power supply equipment for nuclear power plants, and the outer side is the outer side. Generally speaking, the inner side is what the user cannot see or cannot easily see during use, while the outer side is what the user can often see or can easily see during use.

[0046] However, the present disclosure is not limited thereto. In some embodiments, the outer side of the longitudinal beam 200 contacts and connects with the inner side of the cross beam 100. In some embodiments, the outer side of one longitudinal beam 200 contacts and connects with the inner side of the cross beam 100, and the inner side of another longitudinal beam 200 contacts and connects with the outer side of the cross beam 100.

[0047] According to the above, in the present application, the cross beams of the bottom frame, the longitudinal beams of the bottom frame and the columns form a fixed connection to form the frame of the earthquake-resistant cabinet of the power supply equipment for the nuclear power plant. Such a setting utilizes the mutual connection between the cross beams, longitudinal beams and columns to form sufficient strength, and it is no longer necessary to use reinforcements, connectors, sheet metal parts and other components to connect the cross beams, longitudinal beams and columns in pairs. The setting of reinforcements, connectors, sheet metal parts and other components is avoided, which can reduce the force conduction points and reduce the risk of failure. Compared with the use of reinforcement connection in the related art, the setting of the present application allows the bottom frame to form an integral surface structure, which has a better improvement in force conduction and overall strength.

[0048] Figure 3 A schematic diagram of a top view of the bottom frame of an earthquake-resistant cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application; Figure 4 A bottom view structural diagram of a bottom frame of an earthquake-resistant cabinet for power supply equipment for a nuclear power plant provided in some embodiments of the present application; Figure 5 An exploded schematic diagram of a crossbeam of a bottom frame provided in some embodiments of the present application.

[0049] like Figures 3 to 5 As shown, in the exemplary embodiment provided by the present application, the crossbeam 100 may extend in the first direction x. The crossbeam 100 may include an inner sleeve beam 110 and an outer sleeve beam 120 fixed to each other, and the outer side of the inner sleeve beam 110 contacts and connects with the inner side of the outer sleeve beam 120. However, the present disclosure is not limited thereto, and in some embodiments, the inner side of the inner sleeve beam 110 contacts and connects with the outer side of the outer sleeve beam 120.

[0050] like Figure 5 As shown, the inner sleeve beam 110 may include a first edge 111, a first connecting edge 113 and a second edge 112 connected in sequence. The first edge 111 and the second edge 112 may be arranged opposite to each other. In some embodiments, the first edge 111 and the second edge 112 may be parallel to each other.

[0051] like Figure 5 As shown, the first side 111, the first connecting side 113 and the second side 112 can form a groove with an opening, wherein the opening can face the bottom of the earthquake-resistant cabinet 1 of the power supply equipment for a nuclear power plant. In the present application, the opening of the internal sleeve beam 110 faces downward in the gravity direction z, that is, toward the bottom of the earthquake-resistant cabinet 1 of the power supply equipment for a nuclear power plant. Compared with the opening facing the inside in the related art, the present application can form a double-sided force, that is, both the first side and the second side can be subjected to force, which is conducive to enhancing the structural strength of the bottom frame.

[0052] like Figure 5 As shown, in the exemplary embodiment provided by the present application, the edge of the first side 111 can be bent toward the direction close to the opening to form a first bent edge 1110. The provision of the first bent edge 1110 helps to increase the stress-bearing structure and components to enhance the structural strength of the first side 111.

[0053] like Figure 5 As shown, in the exemplary embodiment provided by the present application, the edge of the second side 112 is bent toward the direction close to the opening to form a second bent edge 1120. The second bent edge 1120 is provided to increase the force-bearing structure and components to enhance the structural strength of the second side 112.

[0054] like Figure 5As shown, in the exemplary embodiment provided by the present application, the edge of the first side 111 of the same inner sleeve beam 110 can be bent toward the direction close to the opening to form a first bent edge 1110, and the edge of the second side 112 is bent toward the direction close to the opening to form a second bent edge 1120. Compared with the related art, such a setting optimizes the force from single-side support to double-bent edge force, which greatly alleviates the deformation tendency of the bottom. Adding fixing points at the top and bottom can meet more stringent seismic requirements.

[0055] However, the present disclosure is not limited thereto. In some embodiments, it may be configured that some or one of the inner sleeve beams have a first bending edge, and other or another of the inner sleeve beams have a second bending edge.

[0056] In the exemplary embodiments provided in this application, Figure 5 As shown, the edge 1130 of the first connection edge 113 is a right angle, and the edge of the first connection edge 113 is fixedly connected to the longitudinal beam 200. The edge 1130 of the first connection edge 113 is a right angle, which can maximize the connection area for connecting with the longitudinal beam 200, which is beneficial to enhance the structural strength of the bottom frame 20.

[0057] In the exemplary embodiments provided in this application, Figure 5 As shown, the outer sleeve beam 120 may include a third side 121, a second connecting side 123 and a fourth side 122 connected in sequence, the third side 121 may be arranged opposite to the fourth side 122, and the third side 121 may be located above the fourth side 122 in the gravity direction z. In some embodiments, the third side 121 may be arranged parallel to the fourth side 122.

[0058] like Figure 5 As shown, the third side 121 of the outer sleeve beam 120 can contact the first connecting side 113 of the inner sleeve beam 110, and the third side 121 can be fixed to the first connecting side 113, for example, by rivets, screws, etc.

[0059] like Figure 5 As shown, the first bent edge 1110 and the second bent edge 1120 can be fixedly connected to the fourth edge 122 , for example, they can be connected and fixed by rivets, screws, etc. through the first connecting portion 51 .

[0060] like Figures 3 to 5 As shown, a second connection portion 52 may be provided in the middle portion of the cross beam 100 , and a reinforcement member may be provided at the second connection portion. The reinforcement member may further fix the inner sleeve beam 110 and the outer sleeve beam, thereby improving the structural strength of the bottom frame 20 .

[0061] like Figure 5As shown, the edge 1210 of the third side 121 can be a bevel, and the so-called bevel can be an edge with an acute angle compared to a right angle. In the present application, a bevel can refer to an inclination from the outside to the inside. The edge 1210 of the third side 121 of the external sleeve beam 120 can be adjacent to or in contact with the edge of the longitudinal beam 200. Such a setting utilizes the edge 1130 of the first connecting edge 113 of the internal sleeve beam 110 to increase the connection area as a right angle, and the edge 1210 of the third side 121 of the external sleeve beam 120 is set as a bevel, and the bevel is adjacent to or in contact with the edge of the longitudinal beam 200, so that there is no excessive interference between the cross beam 100 and the longitudinal beam 200, and no further connection is required except for the necessary connection. Reducing the conductive surface and reducing the connection can also reduce the thickness of the bottom frame 20, and keep the bottom frame 20 to form an integral surface structure.

[0062] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the longitudinal beam 200 may include a fifth side 201, a third connecting side 203 and a sixth side 202 connected in sequence, the fifth side 201 and the sixth side 202 may be arranged opposite to each other, and the fifth side 201 may be located above the sixth side 202 in the gravity direction z. In some embodiments, the fifth side 201 and the sixth side 202 may be arranged parallel to each other.

[0063] like Figure 3 and Figure 4 As shown, the edge 2010 of the fifth side 201 is a bevel, and the bevel of the edge 2010 of the fifth side 201 can be adjacent to or in contact with the edge 1210 of the third side 121 of the outer sleeve beam 120. As mentioned above, such a setting can reduce the conductive surface and the connection points while ensuring the structural strength of the bottom frame 20, and can also reduce the thickness of the bottom frame 20, so as to maintain the bottom frame 20 to form an integral surface structure.

[0064] like Figure 3 and Figure 4 As shown, the edge of the fifth side 201 is fixedly connected to the inner sleeve beam 110 , and specifically can be connected at a right angle to the edge 1130 of the first connecting side 113 of the inner sleeve beam 110 . Such a setting is conducive to maintaining structural strength.

[0065] like Figure 3 and Figure 4 As shown, the edge 2020 of the sixth side 202 is a bevel, and the bevel of the edge 2020 of the sixth side 202 can be adjacent to or in contact with the edge 1220 of the fourth side 122 of the outer sleeve beam 120. As mentioned above, such a setting can ensure the structural strength of the bottom frame 20 while reducing the conductive surface, reducing the connection points, and also reducing the thickness of the bottom frame 20, thereby maintaining the bottom frame 20 to form an integral surface structure.

[0066] like Figure 3 and Figure 4 As shown, the edge 2020 of the sixth side 202 is fixedly connected to the inner sleeve beam 110. For example, the edge 2020 of the sixth side 202 is connected to the first bending edge 1110 and the second bending edge 1120. Such a configuration is conducive to maintaining structural strength.

[0067] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the bottom frame 20 may include a plurality of support beams, and the plurality of support beams may include a support longitudinal beam 302 and a support cross beam 301 , wherein both ends of the support longitudinal beam 302 may be respectively connected to the oppositely disposed cross beam 100 , and both ends of the support cross beam 301 may be respectively connected to the oppositely disposed longitudinal beam 200 .

[0068] In the exemplary embodiment provided in the present application, the extension direction of the supporting cross beam 301 is perpendicular to the extension direction of the supporting longitudinal beam 302. Figures 1 to 4 As shown, the supporting longitudinal beam 302 may extend in the second direction y, and the supporting transverse beam 301 may extend in the first direction x.

[0069] In the exemplary embodiments provided in this application, Figures 1 to 4 As shown, the support crossbeam 301 can be located at the lower part of the support longitudinal beam 302, and the support crossbeam 301 is connected to the support longitudinal beam 302. For example, the support crossbeam 301 and the support longitudinal beam 302 can be connected and fixedly connected at the third connection portion 53 by rivets, screws, etc.

[0070] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the supporting beam 301 may include a first side 311, a connecting side 313 and a second side 312 connected in sequence. The first side 311 and the second side 312 may be arranged opposite to each other. In some embodiments, the first side 311 and the second side 312 may be arranged parallel to each other.

[0071] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the first side 311, the connecting side 313 and the second side 312 can form a groove with an opening, and the opening faces the inside of the earthquake-resistant cabinet 1 for power supply equipment for nuclear power plants. The opening faces upward in the gravity direction z, and can further provide support force to the supporting longitudinal beam 302 above it. Such a setting is conducive to connecting and transmitting the weight of the transformer to the bottom frame 20 and the foot 40, and can effectively reduce the elastic deformation of the support beam when the transformer with a large mass is assembled in place.

[0072] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the edge of the first side edge 311 is bent in a direction away from the opening to form a third bent edge 3110. The provision of the third bent edge 3110 helps to increase the force-bearing structure and components to enhance the structural strength of the supporting beam 301.

[0073] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the edge of the second side edge 312 is bent in a direction away from the opening to form a fourth bent edge 3120. The fourth bent edge 3120 is provided to help increase the force-bearing structure and components to enhance the structural strength of the supporting beam 301.

[0074] like Figure 3 and Figure 4 As shown, the edge of the first side 311 of the same support beam 301 can be bent toward the direction close to the opening to form a third bent edge 3110, and the edge of the second side 312 is bent toward the direction away from the opening to form a fourth bent edge 3120. Such a setting can further enhance the supporting function of the support beam.

[0075] In the exemplary embodiment provided in the present application, the support beam 301 extends in the first direction x, and the length of the support beam 301 in the first direction x is set to be adjustable. For example, the support beam 301 can be set to a guide rail structure with adjustable hole spacing, which is conducive to being compatible with transformers with different hole spacings, so that one frame can meet the needs of multiple transformers.

[0076] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the supporting longitudinal beam 302 may include a third side 321, a second connecting side 323 and a fourth side 322 connected in sequence, and the third side 321 and the fourth side 312 may be arranged opposite to each other. In some embodiments, the third side 321 and the fourth side 322 may be arranged parallel to each other.

[0077] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the third side 321, the second connecting side 323 and the fourth side 322 can form a groove with an opening, and the opening faces the outside of the earthquake-resistant cabinet 1 for power equipment for nuclear power plants. The opening faces downward in the gravity direction z, which can improve the supporting strength of the supporting longitudinal beam 302.

[0078] In the exemplary embodiments provided in this application, Figure 3 and Figure 4As shown, the edge of the third side edge 321 is bent in a direction away from the opening to form a fifth bent edge 3210. The provision of the fifth bent edge 3210 helps to increase the stress-bearing structure and components to improve the structural strength of the supporting longitudinal beam 302.

[0079] In the exemplary embodiments provided in this application, Figure 3 and Figure 4 As shown, the edge of the fourth side 322 is bent in a direction away from the opening to form a sixth bent edge 3220. The sixth bent edge 3220 is provided to help increase the stress-bearing structure and components to improve the structural strength of the supporting longitudinal beam 302.

[0080] like Figure 3 and Figure 4 As shown, the edge of the third side 321 of the same supporting longitudinal beam 302 can be bent toward the direction close to the opening to form a fifth bent edge 3210, and the edge of the fourth side 322 can be bent toward the direction away from the opening to form a sixth bent edge 3220. Such a configuration can further enhance the supporting function of the supporting beam.

[0081] Through the setting of the present application, the cross beam of the bottom frame is fixedly connected to two oppositely arranged columns, the longitudinal beam is also fixedly connected to two oppositely arranged columns, and the longitudinal beam and the cross beam are in contact and fixedly connected. Through the setting of the present application, a fixed connection is formed between the cross beam of the bottom frame, the longitudinal beam of the bottom frame and the columns to form the framework of the earthquake-resistant cabinet of the power supply equipment for a nuclear power plant, which can enhance the strength of the earthquake-resistant cabinet of the power supply equipment for a nuclear power plant. The cross beam and longitudinal beam of the bottom frame form a stronger rigid connection with the left and right columns, effectively avoiding the problem of bottom deformation caused by frequent fork transportation.

[0082] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0083] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0084] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0085] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0086] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0087] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0088] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0089] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A seismic cabinet for power supply equipment for a nuclear power plant, characterized in that: include: Multiple columns; as well as Bottom frame, including: A plurality of cross beams, both ends of which are fixedly connected to two oppositely arranged upright posts; and A plurality of longitudinal beams, both ends of which are respectively fixedly connected to two oppositely arranged upright posts, wherein the longitudinal beams are in contact with and fixedly connected to the transverse beams.

2. The earthquake-resistant cabinet for power supply equipment for nuclear power plant according to claim 1, characterized in that: The cross beam comprises an inner sleeve beam and an outer sleeve beam fixed to each other, the outer side of the inner sleeve beam contacts and is connected to the inner side of the outer sleeve beam; The inner sleeve beam comprises a first side, a first connecting side and a second side which are connected in sequence, the first side is arranged opposite to the second side, and the first side, the first connecting side and the second side form a groove shape with an opening, Wherein, the opening faces the bottom of the earthquake-resistant cabinet.

3. The earthquake-resistant cabinet for power supply equipment for nuclear power plant according to claim 2, characterized in that: The edge of the first side is bent toward the direction close to the opening to form a first bent edge; and / or The edge of the second side is bent toward a direction close to the opening to form a second bent edge.

4. The earthquake-resistant cabinet for power supply equipment for nuclear power plant according to claim 3, characterized in that: The inner side of the longitudinal beam contacts and is connected to the outer side of the transverse beam, the edge of the first connecting side is a right angle, and the edge of the first connecting side is fixedly connected to the longitudinal beam.

5. The earthquake-resistant cabinet for power supply equipment for nuclear power plant according to claim 2, characterized in that: The outer sleeve beam comprises a third side, a second connecting side and a fourth side connected in sequence, the third side is opposite to the fourth side, the third side is located above the fourth side, the third side of the outer sleeve beam contacts the first connecting side of the inner sleeve beam, The edge of the third side is a beveled side, and the edge of the third side of the outer sleeve beam is adjacent to or in contact with the edge of the longitudinal beam.

6. The earthquake-resistant cabinet for power supply equipment for nuclear power plant according to claim 2, characterized in that: The longitudinal beam comprises a fifth side, a third connecting side and a sixth side connected in sequence, the fifth side is opposite to the sixth side, and the fifth side is located above the sixth side. Wherein, the edge of the fifth side is a bevel, and the edge of the fifth side is fixedly connected to the internal sleeve beam, and / or the edge of the sixth side is a bevel, and the edge of the sixth side is fixedly connected to the internal sleeve beam.

7. The earthquake-resistant cabinet for power supply equipment for a nuclear power plant according to claim 1, characterized in that: The bottom frame includes a plurality of support beams, and the plurality of support beams include support longitudinal beams and support cross beams, the two ends of the support longitudinal beams are respectively connected to the oppositely arranged cross beams, the two ends of the support cross beams are respectively connected to the oppositely arranged longitudinal beams, the support cross beams are located at the lower part of the support longitudinal beams, and the support cross beams are connected to the support longitudinal beams.

8. The earthquake-resistant cabinet for power supply equipment for nuclear power plant according to claim 7, characterized in that: The supporting beam includes a first side, a connecting side and a second side connected in sequence, the first side is arranged opposite to the second side, the first side, the connecting side and the second side form a groove with an opening, and the opening faces the interior of the earthquake-resistant cabinet of the power supply equipment for the nuclear power plant.

9. The earthquake-resistant cabinet for power supply equipment for a nuclear power plant according to claim 8, characterized in that: The edge of the first side is bent in a direction away from the opening to form a third bent edge; and / or The edge of the second side is bent in a direction away from the opening to form a fourth bent edge.

10. The earthquake-resistant cabinet for power supply equipment for nuclear power plant according to claim 7, characterized in that: The supporting beam extends in a first direction, and a length of the supporting beam in the first direction is adjustable.

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